Microstructure, Complex Electromechanical Parameters and Dispersion in Porous Piezoceramics
摘要
In this work, the microstructure features and complex electromechanical parameters of porous piezoelectric ceramics based on the PZT system with different relative porosities and pore sizes are studied. Complex elastic, dielectric, and electromechanical parameters of porous piezoceramics were measured on the thickness mode of vibration of standard samples and analyzed using the piezoresonance analysis program (PRAP). It was shown that the microstructural features of porous piezoceramics determine the character of the porosity dependences of real and imaginary parts of dielectric, piezoelectric and electromechanical properties of porous piezoelectric ceramics.